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Look at the issue for and against the cloning project. Find out data about how the Dolly Project was undertaken and what if anything came out as a positive and negative. Based on that write in your conclusion
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What did scientists say about dolly the cloned sheep's DNA?
Dolly's DNA all comes from the same sheep. It was placed into an ovum from a second sheep; the ovum's DNA had been removed so as not to mix with Dolly's DNA. The ovum was implanted into a third sheep who gave birth to Dolly.
Which is 1st the animal to be cloned and where?
The first was "Dolly", a very famous scottish sheep. It is worth noting, however, that there had been previous cloning done, but all on very small creatures i.e flies. "Dolly" is considered to be the first cloned, as cloning a sheep is so complex and the fact that both Dollies had a full bill of health afterward. ----------------------------------------------------------------------------------------------------------------- The first cloned animal was a tadpole.
Who was Dolly the sheep?
Dolly was a cloned sheep, and the first mammal to be successfully cloned. She was created at the Roslin Institute in Scotland. The cell from which she was cloned was taken from a six year old ewe. Dolly was born on 5 July 1996, but scientists did not announce her birth until February 22 the following year. The cloning technique used in the creation of Dolly was somatic cell nuclear transfer, in which the nucleus from one of the donor's non-reproductive cells is placed into a de-nucleated embryonic cell and coaxed into developing into a foetus.
Was all the sheep used in cloning female?
All breeds of sheep can be used now that the experiment was a success, however, Dolly was a clone of a Dorset White faced Sheep.
Is dolly the sheep dead or alive?
Dolly the sheep died on February 15 2003 from Ovine Pulmonary Adenocarcinoma. OPA is a fairly common disease on sheep farms but usually affects older sheeps. Other sheep on the farm where Dolly lived were also treated for the same lung ailment and this is very common in sheep that are kept indoors. So to understand how Dolly passed away at such a young age, we need to understand the function of these tiny sacrificial materials found at the end of the DNA strand known as the telomeres. Telomeres are basically little pieces of the ends on every DNA strand that basically have no codes on them but as the cells go through mitosis (which is the division of one parent cell into two daughters), while the DNA and all of the genes on it are duplicated equally and have 100% the same amount of genes as the original parent, the telomeres do NOT restore to their original amount. So with every mitosis, the number of telomeres in each new cell is less than the amount found in the original parent cell. In general, telomeres are one of the major contributors of aging and the lesser you have, the older you'll look! In normal birth between, every individual regardless of species have a set amount of telomeres which as a result determines that individual's life span and how long they will live. Once an organism runs low on telomeres, they start to age get elder-looking features as well as lose some genes at the ends of each strand. The reason is because telomeres NEVER turn back on once the child is born so they remain inactive throughout the organism's whole life while their DNA on the other hand is always active. In Dolly's case, the young ewe was cloned from an ADULT which means that her DNA was directly extracted from an adult sheep! That adult that she was cloned from already had HALF the telomeres (in this case, only 7 years left of her life span). Since Dolly was directly copied off from an adult with half the telomeres of a regular baby sheep, this means that she was born with only half the life span of a normal sheep and this is what caused her to apparently age rapidly and pass away at what was supposedly a young age for a sheep. It's because she was already an old lady sheep at that age with very little telomeres left as a result of cloning from an adult sheep with only half the telomeres!
What is the first animal created by reproductive cloning?
PCH: SheepThe first animal cloned was a tadpole. More info below. 1885: Sea Urchin: Hans Adolf Edward Dreisch split a two celled urchin embryo to separate the cells. The two individual cells were allowed to grow and develop and he was left with two genetically identical individuals.1902: Salamander: Hans Spemann uses a baby's hair to take a two celled salamander embryo and literally pinches them apart. He was left with two genetically identical salamanders.1952: Frog: Robert Briggs and Thomas King took the nucleus from the frog the desired to clone and put it into the egg from another frog, which had previously had it's nucleus removed. The egg was allowed to duplicate and grow. Unfortunately, many frogs that did grow were deformed.1975: Rabbit: J. Derek Bromhall used nuclear transfer, like Briggs and King, to clone a rabbit. An advanced embryo, morula, developed after a few days. He considered his experiment a success even though an adult organism did not develop.1986: Sheep: The ever famous Dolly was not the first cloned sheep. The scientist Steen Willadsen cloned this sheep using a nucleus from an enucleated egg cell. A small shock fuses the two together. The resulting egg is implanted into a surrogate mother.1987: Cow: Neal First, Randal Prather, and Willard Eyestone used an electrical shock to morph together isolated nuclei and empty egg cells. The two resulting calves are named Fusion and Copy.1996: Sheep: Ian Wilmut and Keith Campbell use cultured mammalian cells to create two cloned lambs. They are named Megan and Molly.1996: Sheep: Wilmut and Campbell use the process previously noted in 2 to create Dolly the sheep.1997: Monkey: Li Meng, John Ely, Richard Stouffer, and Don Wolf used the previous method of shocking embryonic nuclei and enucleated egg cells to make 29 cloned embryos. Of the 29 only two monkeys developed, Neti and Ditto.1997: Sheep: Angelika Schnieke, Keith Campbell, and Ian Wilmut use cultured sheep cells to attempt something that could help human hemophiliacs. These people lack a clotting factor and when they get mild scratches they could bleed to death. Hemophilia is very prominent in the royal families of Hawaii, Britain, Spain etc. due to the intermarriage in the families. Hemophiliacs typically die before coming of age. The factor for clotting, factor IX, is inserted into the sheep DNA and the nuclei are inserted into enucleated eggs. A sheep with the human factor IX is born, she's named Polly.1998: Mouse: Teruhiko Wakayama, and Ryuzo Yanagimachi use the process used to make Dolly to create the first cloned mouse pup named Cumulina.1999: Mouse: Wakayama and Yanagimachi plan to make a male clone. So far all successful adult clones have been made female. The isolate the male DNA and insert it into empty egg cells. Fertilization is simulated with a shock and after almost 300 attempts a male mouse is made, Fibro.Finally a cat named CC, a joke on the phrase 'Copy Cat', which was part of a larger project to clone a dog named Snuppy.
Which of the following have been produced by selective breeding A horse breeds B cat breeds C dog breeds D all of the above?
Humans have selectively bred all of these: A horse breeds B cat breeds C dog breeds Scientists also cloned-bred Dolly, a Finn Dorset sheep. Dolly was born July 5th, 1996, at the Roslin Institute in Edinburgh, Scotland. Clone-breeding raised many controversies about cloning, while breeding raises few controversies UNLESS the breeding is known to produce defects in offspring.
Where was cloning invented?
Its believed to be in Scotland, around 1997. So many Scientists all around the world experimented at different times, in different places with different types of cloning. But the first recorded, successful cloning was in Scotland 1997, by Roslin Institute when they cloned the Sheep Dolly. But Hans Dreich, not trying to produce an identical organism, actually did just that, with a Sea Urchin before that, believed to be in Germany, in the 1800's.
Where was cloning first invented?
Its believed to be in Scotland, around 1997. So many Scientists all around the world experimented at different times, in different places with different types of cloning. But the first recorded, successful cloning was in Scotland 1997, by Roslin Institute when they cloned the Sheep Dolly. But Hans Dreich, not trying to produce an identical organism, actually did just that, with a Sea Urchin before that, believed to be in Germany, in the 1800's.
Can cloned humans reproduce with all of the benefits of a real human?
First find a cloned human, then we'll talk.
What was the second cloned animal?
== == * Since the cloning of the sheep Dolly having acquired a break down of cells and had to be euthanize at age 6 when she should have lived to be 12 years or more there have been dogs, cats and and even a mule (used for racing) cloned, but the facts about cloning have been kept very low key and for good reason. There is more cloning going on then most of us know and there is good reason to believe that some cloned and butchered animals are in our pet's food, so how do we know we aren't getting some of this food. Cloning is not a perfected science and can cause disease or newer diseases. Pig's skin and even some organs have been used on humans for transplants. There is a hush about cloning because although cloning of a human organ would be a wonderful thing and more people would get organs instead of left on waiting lists there is a bad side to this as well .... the break down of cells and what other diseases this could cause in humans. One shouldn't play God with such things (or fool Mother Nature) but cloning is going on all over the world and it's bound to come and stay regardless of the dangers. * The answer is, after the first cloned animal in 1952, a tadpole, there has been a number of clones, so many were made in the same time so there really is no second animal cloned, there are hundreds. * While it is possible there were other cloned animals before 'Dolly' it would have been illegal at that given time and the scientific study of cloning is 'Dolly!'
Events around the world in 1997?
- Titanic premieres and becomes one of the highest-grossing films of all time. - Princess Diana is killed in an automobile accident. - Mother Teresa of Calcutta dies. - Hong Kong is handed back to China from the British. - Dolly the Sheep becomes the first creature to be cloned by scientists. - Asian Financial Crisis hits. - First book of the Harry Potter series is released. - Pokemon is first introduced.
